| // Copyright 2021 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package generator |
| |
| import ( |
| "bytes" |
| "fmt" |
| ) |
| |
| // pointerparm describes a parameter of pointer type; it implements the |
| // "parm" interface. |
| type pointerparm struct { |
| tag string |
| totype parm |
| isBlank |
| addrTakenHow |
| isGenValFunc |
| skipCompare |
| } |
| |
| func (p pointerparm) Declare(b *bytes.Buffer, prefix string, suffix string, caller bool) { |
| n := p.totype.TypeName() |
| if caller { |
| n = p.totype.QualName() |
| } |
| b.WriteString(fmt.Sprintf("%s *%s%s", prefix, n, suffix)) |
| } |
| |
| func (p pointerparm) GenElemRef(elidx int, path string) (string, parm) { |
| return path, &p |
| } |
| |
| func (p pointerparm) GenValue(s *genstate, f *funcdef, value int, caller bool) (string, int) { |
| pref := "" |
| if caller { |
| pref = s.checkerPkg(s.pkidx) + "." |
| } |
| var valstr string |
| valstr, value = s.GenValue(f, p.totype, value, caller) |
| fname := s.genAllocFunc(p.totype) |
| return fmt.Sprintf("%s%s(%s)", pref, fname, valstr), value |
| } |
| |
| func (p pointerparm) IsControl() bool { |
| return false |
| } |
| |
| func (p pointerparm) NumElements() int { |
| return 1 |
| } |
| |
| func (p pointerparm) String() string { |
| return fmt.Sprintf("*%s", p.totype) |
| } |
| |
| func (p pointerparm) TypeName() string { |
| return fmt.Sprintf("*%s", p.totype.TypeName()) |
| } |
| |
| func (p pointerparm) QualName() string { |
| return fmt.Sprintf("*%s", p.totype.QualName()) |
| } |
| |
| func mkPointerParm(to parm) pointerparm { |
| var pp pointerparm |
| pp.tag = "pointer" |
| pp.totype = to |
| return pp |
| } |
| |
| func (p pointerparm) HasPointer() bool { |
| return true |
| } |
